APES 9.1 to 9.5 Global Warming.

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

 Which of the following activities contributes the most to carbon emissions globally?

• Deforestation
• Agriculture
• Burning fossil fuels
• Respiration

Which of the following are greenhouse gases?

• Carbon dioxide
• Methane
• Water vapor
• All answers are correct

The gas that is most abundant in the atmosphere is

• oxygen
• nitrogen
• carbon dioxide
• argon

What happens to the temperature if more greenhouse gases are released into the atmosphere?

• Temperature goes up
• Temperature goes down

Without the Greenhouse Effect the Earth would be

• warm 
• cold
• dead

1.  Certain gases in the atmosphere – water vapor, carbon dioxide, methane and nitrous oxide – help maintain the Earth’s temperatures and climate. These are called: __________ . 

• A.  ozone gases
• A.  solar gases
• A.  greenhouse gases 
• A.  stomach gases

1.  Why is the Ozone important to life on Earth?

• A.   The Ozone reflects all the Ultra Violet radiation
• A.  The Ozone absorbs all the heat that come up from the Earth.
• The Ozone provides all the oxygen to Earth.
• The Ozone protects the Earth’ s atmosphere and the life on Earth from harmful radiant energy emitted by the sun   

Over the past 200 years, the level of carbon dioxide in the atmosphere has

• decreased slightly.   
• increased until recently, and then decreased.
• increased steadily.   
• stayed about the same.

Increased carbon dioxide may cause global warming by

• allowing more sunlight into the atmosphere.
• reflecting more sunlight from clouds.
• reducing the amount of oxygen in the air.   
• trapping more heat in the atmosphere.